Home / 3,392.40-5,089.01-1,312.32

Finding the Fourth Proportional to 3,392.40, 5,089.01 and 1,312.32

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Solution

The fourth proportional to 3,392.40, 5,089.01 and 1,312.32 is: 1,968.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.40 : 5,089.01 = 1,312.32 : x
  2. Step 2: Convert to fraction form
    3,392.40/5,089.01 = 1,312.32/x
  3. Step 3: Cross multiply
    3,392.40x = 5,089.01 × 1,312.32
  4. Step 4: Simplify right side
    3,392.40x = 6,678,409.60
  5. Step 5: Solve for x
    x = 6,678,409.60/3,392.40
  6. Step 6: Final answer
    x = 1,968.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.